Apparatus and method for decoding moving picture capable of performing simple and easy multiwindow display

摘要

Header information capture section extracts information such as the numbers of dots in horizontal and vertical directions, respectively, of the picture, a frame rate and so on from a sequence header included in an MPEG video stream. Total processing amount estimation/reproduction scheme determination section receives a channel priority determined for each display mode and an output of header information capture section to estimate a total processing amount and determine a reproduction scheme for each channel. MPEG decoder receives code inputs of channels 1 to 4 in a time-dividing manner through header information capture section to perform decoding of picture codes of each channel according to a determination signal outputted from total processing amount estimation/reproduction scheme determination section. With such a configuration, there is provided an moving picture decoding apparatus capable of performing high quality picture display in plural channels while suppressing increase in circuit scale of a decoder and in use amount of a memory.